Abstract
To expand the possibilities of using welded stainless steel pipes in chemical engineering, comprehensive studies of the experimental batch of straight-seam and U-shaped laser-welded tubes of A316L steel have been performed. The corrosion resistance, strength and structural-phase changes in the product material during austenization were studied: short-term annealing at 1000 °C. It is shown that longitudinal welded pipes have a high margin of ductility. This opens up prospects for their wide application for the production of bent assortment in the form of U-shaped products. It has been experimentally proved that heat treatment according to the regime of short-term austenization completely eliminates metal hardening, providing relaxation of its elastic stresses and the formation of the structural state necessary for technological redistribution of A316L steel. Heat treatment according to the mode of short-term austenization at a temperature of 1000–1050 °C for 1–5 minutes can be recommended as a mandatory technological operation that completes the metallurgical conversion of laser-welded stainless tubes of heat-exchange gauge.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IOP Conference Series: Materials Science and Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
